CN214828165U

CN214828165U - Anti-falling safety device of construction elevator

Info

Publication number: CN214828165U
Application number: CN202121291890.8U
Authority: CN
Inventors: 王明辉; 王建国; 杨建坤
Original assignee: Fujian Jianyong Machinery Equipment Co ltd
Current assignee: Fujian Jianyong Machinery Equipment Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-11-23
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a construction elevator prevents weighing down breaker relates to engineering machine tool technical field. The utility model discloses an end cover is installed to shell, one side of shell, and one side top of end cover is provided with lubricating assembly, is provided with fixed subassembly in the middle of one side of end cover, and it has the pivot to run through in the middle of the inside of end cover. The utility model discloses a be provided with fixed subassembly, at first the staff meshes gear and driven gear and lift's draw runner mutually, the elastic potential energy of elastic component is under the effect and is pushed the slider and remove to the draw runner orientation in that the slide is inside mutually, connecting axle and driven gear remove to the draw runner orientation together under the slider drives, make driven gear and gear press from both sides the draw runner tightly, it makes gear and draw runner come off the meshing and lead to the safety hook inefficacy to prevent to appear unusual vibrations in the motion process of cage, install the guide pulley through the connecting frame in one side of driven gear in addition, gear and draw runner have further been prevented and have come off, the device stability has been improved.

Description

Anti-falling safety device of construction elevator

Technical Field

The utility model relates to an engineering machine tool technical field specifically is a construction elevator prevents weighing down breaker.

Background

The construction elevator is a construction machine which adopts a gear, rack or wire rope lifting mode to make a suspension cage do vertical or inclined motion and is used for conveying constructors, tools, equipment and logistics, the application is wide, the construction elevator can safely operate, and the safety factor of the equipment operation is improved mainly due to the arrangement of the anti-falling safety device.

The prior patent No. CN201678329U discloses an anti-falling safety device of a construction elevator, wherein the inner side of a gear shaft is positioned by changing an original adjusting gasket between a shaft end and a brake drum into an end face bearing between an end cover and a gear, the machining precision can be controlled due to few factors influencing the length clearance between the end cover and a gear shaft neck, and the control requirement of axial clearance can be met without adjustment after assembly, but the device is meshed and connected with a slide bar of the elevator through a single gear, the gear and the slide bar are lack of a fastening device, and when an elevator cage descends abnormally, severe vibration is often accompanied, and the gear and the slide bar are easy to fall off and mesh in the vibration process to cause the failure of the anti-falling device; meanwhile, in order to ensure smooth operation of the device, a worker needs to frequently add lubricating oil into the device, so that the maintenance cost is high, if the lubricating oil cannot be added in time, the operation of the device is influenced, the abrasion of the device is caused, and the service life of the device is further influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a construction elevator prevents weighing down breaker to the safety hook gear that solves lacks fastener and the lift draw runner and the device needs frequent lubricating oil that adds leads to the higher technical problem of maintenance cost.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a construction elevator prevents weighing down breaker, includes the shell, the end cover is installed to one side of shell, one side top of end cover is provided with lubricated subassembly, be provided with fixed subassembly in the middle of one side of end cover, it has the pivot to run through in the middle of the inside of end cover, install centrifugal speed limiter in the middle of the surface of pivot, the gear has been cup jointed to the one end of pivot, the gear is kept away from in the pivot one end installs the cydariform body through the bearing, the cydariform body is kept away from the one end of pivot and is installed clamp bolt, the friction disc is installed to the inside top of shell.

Furthermore, the gear is located one side of the end cover, and the rotating shaft is rotatably connected with the end cover through a bearing.

By adopting the technical scheme, the gear and the driven gear are meshed with the slide bar of the elevator, and after the elevator runs, the falling protector moves up and down along with the cage of the elevator, so that the gear and the slide bar move relatively to rotate, and the safety falling protector can conveniently sense the operating state of the cage.

Furthermore, the lubricating component comprises an oil storage tank arranged above one side of the end cover, an oil collecting tank arranged below one side of the end cover, an oil guide pipe and a lubricating groove, wherein the oil guide pipe and the lubricating groove are arranged in the end cover, an oil inlet is formed in the top of the oil storage tank in a penetrating mode, and an oil outlet is formed in the lower portion of one side of the oil collecting tank in a penetrating mode.

Through adopting above-mentioned technical scheme, the staff fills lubricating oil to the inside of batch oil tank through the oil inlet, accomplishes to fill the back and seals the oil inlet, and lubricating oil flows into the inside lubrication groove of end cover through leading oil pipe, makes the rotation of pivot more smooth and easy, prevents the pivot wearing and tearing to keep the performance of pivot to improve the life of safety hook.

Furthermore, the lubrication groove is located between the end cover and the rotating shaft, and one end, far away from the oil storage tank and the oil collection tank, of the oil guide pipe is communicated with the lubrication groove.

Through adopting above-mentioned technical scheme, after lubricating oil used a period, lubricating oil became thick and the density increase, under the effect of gravity, the great lubricating oil of density subsides downwards to the sump oil tank through leading oil pipe, makes things convenient for the staff to release used lubricating oil through the oil-out that is located sump oil tank one side, has improved the maneuverability of device.

Further, fixed subassembly is including installing in the link frame of end cover one side and seting up the slide in end cover one side, the inside sliding connection of slide has the slider, one side of slider is rotated through the bearing and is connected with the connecting axle, driven gear has been cup jointed to the surface of connecting axle, the elastic component is installed to inside one side of link frame, the guide pulley is installed to the inside opposite side of link frame.

By adopting the technical scheme, the gear and the driven gear are meshed with the slide bar of the elevator, the slide block is pushed to move towards the slide bar direction in the slide way under the action of elastic potential energy of the elastic piece, the connecting shaft and the driven gear move towards the slide bar direction together under the driving of the slide block, so that the slide bar is clamped tightly by the driven gear and the gear, and the falling protector is prevented from losing efficacy due to the fact that the slide bar is disengaged and meshed with the gear due to abnormal vibration in the motion process of the cage.

Furthermore, the connecting frame is "L" type, the elastic component is kept away from one side of connecting frame and is connected with the slider, driven gear is located one side of gear.

By adopting the technical scheme, when the cage of the elevator stalls and falls and shakes, the slide block is pushed to move towards the direction of the slide bar in the slide way under the action of the elastic potential energy of the elastic piece, the connecting shaft and the driven gear move towards the direction of the slide bar together under the driving of the slide block, so that the driven gear and the gear clamp the slide bar, and the slide bar is prevented from falling and meshing with the gear to cause the failure of the safety hook.

Furthermore, the cone-drum body is positioned in the shell, the centrifugal speed limiting device is positioned in the cone-drum body, and a groove is formed in the cone-drum body.

Through adopting above-mentioned technical scheme, when the speed that the cage glides reaches a definite value, when centrifugal force is greater than the pressure of pressure spring, the centrifugal piece accomplishes the action of opening under the effect of centrifugal force, push into in the recess that awl drum body inner chamber set up, make the awl drum body produce rotatoryly, the awl drum body rotates and makes the screw thread of its most advanced inside constantly mesh with clamp bolt, make the awl drum body remove to the clamp bolt direction, the toper produces the friction with the friction disc contact at the in-process that removes, and this in-process frictional force constantly increases, thereby play the braking action, in order to prevent that the cage from continuing the tenesmus.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a be provided with lubricating assembly, lubricating oil in the oil storage tank flows into the lubrication groove of end cover inside through leading oil pipe, make the rotation of pivot more smooth and easy, prevent the pivot wearing and tearing, after lubricating oil used a period, lubricating oil becomes thick and density increases, under the effect of gravity, the great lubricating oil of density subsides downwards to the sump oil tank through leading oil pipe, new lubricating oil flows downwards to the lubrication groove in the oil storage tank simultaneously, prevent the device because of the condition that the device weared and teared because of lubricating oil filling untimely, the staff can add lubricating oil in the oil storage tank oil storage again when oil volume is less in the oil storage tank, and discharge waste oil from the oil-out of sump oil tank one side, the problem that the device need frequently fill lubricating oil has been avoided, the maintenance cost of safety hook has been reduced;

2. the utility model discloses a be provided with fixed subassembly, at first the staff meshes gear and driven gear and lift's draw runner mutually, the elastic potential energy of elastic component is under the effect and is pushed the slider and remove to the draw runner orientation in that the slide is inside mutually, connecting axle and driven gear remove to the draw runner orientation together under the slider drives, make driven gear and gear press from both sides the draw runner tightly, it makes gear and draw runner come off the meshing and lead to the safety hook inefficacy to prevent to appear unusual vibrations in the motion process of cage, install the guide pulley through the connecting frame in one side of driven gear in addition, gear and draw runner have further been prevented and have come off, the device stability has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the shell of the present invention in a top-down structure;

FIG. 3 is a schematic view of the front cross-section structure of the housing of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a housing; 2. an end cap; 3. a lubrication assembly; 301. an oil storage tank; 302. an oil guide pipe; 303. a lubrication groove; 304. an oil collecting tank; 305. an oil outlet; 306. an oil inlet; 4. a rotating shaft; 5. a gear; 6. a fixing assembly; 601. a connecting frame; 602. a slideway; 603. a slider; 604. an elastic member; 605. a connecting shaft; 606. a driven gear; 607. a guide wheel; 7. a centrifugal governor; 8. a cone drum body; 9. a hold-down bolt; 10. a friction plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following describes an embodiment of the present invention according to its overall structure.

An anti-falling safety device of a construction elevator, as shown in figures 1-4, comprises a shell 1, an end cover 2 is arranged on one side of the shell 1, a lubricating component 3 is arranged above one side of the end cover 2, the smooth operation of the device is kept under the action of lubricating oil, the service life of the device is prolonged, a fixing component 6 is arranged in the middle of one side of the end cover 2, a rotating shaft 4 penetrates through the middle of the inside of the end cover 2, a centrifugal speed limiting device 7 is arranged in the middle of the outer surface of the rotating shaft 4, a gear 5 is sleeved at one end of the rotating shaft 4, a conical drum body 8 is arranged at one end, far away from the gear 5, of the rotating shaft 4 through a bearing, a compression bolt 9 is arranged at one end, far away from the rotating shaft 4, a friction plate 10 is arranged above the inside of the shell 1, the gear 5 is arranged on one side of the end cover 2, the rotating shaft 4 is rotatably connected with the end cover 2 through a bearing, the conical drum body 8 is arranged inside the shell 1, the centrifugal speed limiting device 7 is arranged inside the conical drum body 8, and the cone drum body 8 is internally provided with a groove, when a cage of the elevator stalls and falls, a centrifugal block on a centrifugal speed limiting device 7 of the anti-falling safety device gradually increases the centrifugal force generated by the centrifugal block along with the increase of the falling speed, when the falling speed of the cage reaches a certain value and the centrifugal force is greater than the pressure of the pressure spring, the centrifugal block finishes the opening action under the action of the centrifugal force and pushes the centrifugal block into the groove arranged in the inner cavity of the cone drum body 8 to enable the cone drum body 8 to rotate, the cone drum body 8 rotates to enable the screw thread inside the tip end of the cone drum body to be continuously meshed with the compression bolt 9, the cone drum body 8 moves towards the compression bolt 9, the cone contacts with the friction plate 10 to generate friction in the moving process, and the friction force is continuously increased in the process, so that the braking effect is achieved, and the cage is prevented from continuously falling.

Referring to fig. 3 and 4, the lubricating assembly 3 includes an oil storage tank 301 installed above one side of the end cover 2, an oil collection tank 304 installed below one side of the end cover 2, and an oil guide pipe 302 and a lubricating groove 303 opened inside the end cover 2, an oil inlet 306 is penetrated through the top of the oil storage tank 301, an oil outlet 305 is penetrated through the lower side of one side of the oil collection tank 304, the lubricating groove 303 is located between the end cover 2 and the rotating shaft 4, the lubricating oil flows into the lubricating groove 303 inside the end cover 2 through the oil guide pipe 302, so that the rotating shaft 4 rotates more smoothly, the rotating shaft 4 is prevented from being worn, the service life of the safety catch is prolonged, one end of the oil guide pipe 302, which is far away from the oil storage tank 301 and the oil collection tank 304, is communicated with the lubricating groove 303, when the lubricating oil is used for a period, the viscosity and the density of the lubricating oil are increased, the lubricating oil with higher density is settled down into the oil collection tank 304 through the oil guide pipe 302 under the action of gravity, and a worker can release the used lubricating oil through the oil outlet 305 located on one side of the oil collection tank 304 periodically, and new lubricating oil is supplemented into the oil storage tank 301 from the oil inlet 306 so as to maintain the performance of the rotating shaft and prolong the service life of the anti-falling device.

Referring to fig. 1 and 2, the fixing assembly 6 includes a connecting frame 601 installed on one side of the end cover 2 and a slide 602 opened on one side of the end cover 2, a slide block 603 is slidably connected inside the slide 602, one side of the slide block 603 is rotatably connected with a connecting shaft 605 through a bearing, a driven gear 606 is sleeved on an outer surface of the connecting shaft 605, an elastic member 604 is installed on one side inside the connecting frame 601, a guide wheel 607 is installed on the other side inside the connecting frame 601, the connecting frame 601 is L-shaped, one side of the elastic member 604 far away from the connecting frame 601 is connected with the slide block 603, the driven gear 606 is located on one side of the gear 5, under the action of elastic potential energy, the elastic piece 604 pushes the sliding block 603 to move towards the direction of the sliding strip in the sliding channel 602, the connecting shaft 605 and the driven gear 606 move together towards the slide bar direction under the driving of the sliding block 603, so that the driven gear 606 and the gear 5 clamp the slide bar, and the slide bar is prevented from falling and meshing with the gear 5 to cause the failure of the anti-falling device due to abnormal vibration in the motion process of the suspension cage.

The implementation principle of the embodiment is as follows: firstly, a worker installs the safety anti-falling device on a cage of a lifter, and causes the gear 5 and the driven gear 606 to be meshed with a slide bar of the lifter, the elastic piece 604 pushes the sliding block 603 to move towards the slide bar direction in the slide 602 under the action of elastic potential energy, the connecting shaft 605 and the driven gear 606 move towards the slide bar direction together under the driving of the sliding block 603, so that the driven gear 606 and the gear 5 clamp the slide bar, and the anti-falling device is prevented from losing efficacy due to the fact that the slide bar is disengaged from the gear 5 and meshed with the gear 5 due to abnormal vibration in the motion process of the cage; then, a worker fills lubricating oil into the oil storage tank 301 through the oil inlet 306, the oil inlet 306 is sealed after filling, the lubricating oil flows into the lubricating groove 303 in the end cover 2 through the oil guide pipe 302, so that the rotation of the rotating shaft 4 is smoother, the rotating shaft 4 is prevented from being worn, the service life of the anti-falling device is prolonged, after the lubricating oil is used for a period of time, the lubricating oil becomes viscous and increases in density, the lubricating oil with high density is downwards settled into the oil collection tank 304 through the oil guide pipe 302 under the action of gravity, the worker can regularly release the used lubricating oil through the oil outlet 305 on one side of the oil collection tank 304 and replenish new lubricating oil into the oil storage tank 301 from the oil inlet 306, and therefore the performance of the rotating shaft is maintained, and the service life of the anti-falling device is prolonged; after the elevator runs, the falling protector moves up and down along with a cage of the elevator, so that the gear 5 and the slide bar generate relative motion to rotate, the gear 5 rotates to drive the rotating shaft 4 to rotate together, and meanwhile, the centrifugal speed limiting device 7 rotates along with the rotating shaft 4; when the cage of the elevator stalls and falls, the centrifugal block on the centrifugal speed limiting device 7 of the anti-falling safety device gradually increases the centrifugal force generated by the centrifugal block along with the increase of the falling speed, when the sliding speed of the cage reaches a certain value and the centrifugal force is greater than the pressure of the pressure spring, the centrifugal block finishes the opening action under the action of the centrifugal force and pushes into the groove arranged in the inner cavity of the conical drum body 8 to rotate the conical drum body 8, the conical drum body 8 rotates to enable the thread inside the tip end of the conical drum body to be continuously meshed with the compression bolt 9, the conical drum body 8 moves towards the direction of the compression bolt 9, the conical drum contacts with the friction plate 10 to generate friction in the moving process, and the friction force is continuously increased in the process, so that the braking effect is achieved, and the cage is prevented from continuously falling.

Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.

Claims

1. The utility model provides a construction elevator prevents weighing down breaker, includes shell (1), its characterized in that: end cover (2) are installed to one side of shell (1), one side top of end cover (2) is provided with lubricated subassembly (3), be provided with fixed subassembly (6) in the middle of one side of end cover (2), run through pivot (4) in the middle of the inside of end cover (2), install centrifugal speed limiter (7) in the middle of the surface of pivot (4), gear (5) have been cup jointed to the one end of pivot (4), the one end that gear (5) were kept away from in pivot (4) is installed cone drum body (8) through the bearing, the one end that pivot (4) were kept away from in cone drum body (8) is installed and is compressed tightly bolt (9), friction disc (10) are installed to the inside top of shell (1).

2. The construction hoist fall arrest safety device according to claim 1, wherein: the gear (5) is located on one side of the end cover (2), and the rotating shaft (4) is rotatably connected with the end cover (2) through a bearing.

3. The construction hoist fall arrest safety device according to claim 1, wherein: lubricating component (3) including install in oil storage tank (301) of end cover (2) one side top and install in oil collecting tank (304) of end cover (2) one side below and set up in oil pipe (302) and lubricated groove (303) of leading of end cover (2) inside, oil inlet (306) have been run through at the top of oil storage tank (301), oil-out (305) have been run through to one side below of oil collecting tank (304).

4. The construction hoist fall arrest safety device according to claim 3, wherein: lubricating groove (303) are located between end cover (2) and pivot (4), oil pipe (302) are kept away from oil storage tank (301) and the one end of oil collection tank (304) and are all link up with lubricating groove (303).

5. The construction hoist fall arrest safety device according to claim 1, wherein: fixed subassembly (6) including install in connection frame (601) of end cover (2) one side and offer slide (602) in end cover (2) one side, the inside sliding connection of slide (602) has slider (603), one side of slider (603) is connected with connecting axle (605) through the bearing rotation, driven gear (606) have been cup jointed to the surface of connecting axle (605), elastic component (604) are installed to inside one side of connection frame (601), guide pulley (607) are installed to the inside opposite side of connection frame (601).

6. The construction hoist fall arrest safety device according to claim 5, wherein: the connecting frame (601) is L-shaped, one side, far away from the connecting frame (601), of the elastic piece (604) is connected with the sliding block (603), and the driven gear (606) is located on one side of the gear (5).

7. The construction hoist fall arrest safety device according to claim 1, wherein: the conical drum body (8) is located inside the shell (1), the centrifugal speed limiting device (7) is located inside the conical drum body (8), and a groove is formed in the conical drum body (8).